we are in salt lake city and hundreds attended a training seminar. in a violent situation the educators were taught to first initiate a lock down, but if that failed, the teachers want to know how to respond properly. >> you know, i think that a lot of people have a fear of guns and what they can do. but i think also maybe they are not quite educated, but sometimes the only thing that will stop a bad guy with a gun is a good guy with a gun. >> critics argue arming teachers is dangerous and warns risks such as accidental shootings or an intruder over powering the teacher for their gun. even so arizona and washington state are looking into the idea and may be the next to allow teachers to carry a concealed weapon on campus. >> what about the background checks? i understand some states are having a difficult time managing the requests. >> they are. no official data on gun sales over the past few weeks, but signs suggest they are way up. a spike in attendance at gun shows is one inned case cater -- is one indicator and background checks conducted by the